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Document-based question answering (QA) increasingly includes abstract questions that require synthesizing scattered information from long documents or across multiple documents into coherent answers. However, this setting is still poorly…

Computation and Language · Computer Science 2026-05-12 Shu Wang , Shansong Zhou , Xinyang Wang , Shiwei Wang , Hulong Wu , Yixiang Fang

Multi-hop question answering (QA) necessitates multi-step reasoning and retrieval across interconnected subjects, attributes, and relations. Existing retrieval-augmented generation (RAG) methods struggle to capture these structural…

Computation and Language · Computer Science 2026-02-19 Jimeng Shi , Wei Hu , Runchu Tian , Bowen Jin , Wonbin Kweon , SeongKu Kang , Yunfan Kang , Dingqi Ye , Sizhe Zhou , Shaowen Wang , Jiawei Han

Multimodal information extraction (MIE) aims to extract structured information from unstructured multimedia content. Due to the diversity of tasks and settings, most current MIE models are task-specific and data-intensive, which limits…

Computation and Language · Computer Science 2023-10-05 Yuxuan Sun , Kai Zhang , Yu Su

Multi-hop question answering (QA) is a challenging task requiring QA systems to perform complex reasoning over multiple documents and provide supporting facts together with the exact answer. Existing works tend to utilize graph-based…

Computation and Language · Computer Science 2022-05-25 Xin-Yi Li , Wei-Jun Lei , Yu-Bin Yang

Question answering systems are typically evaluated on factual correctness, yet many real-world applications-such as education and career guidance-require mentorship: responses that provide reflection and guidance. Existing QA benchmarks…

Computation and Language · Computer Science 2026-01-27 Parth Bhalerao , Diola Dsouza , Ruiwen Guan , Oana Ignat

For large language models (LLMs) to be effective in the financial domain -- where each decision can have a significant impact -- it is necessary to investigate realistic tasks and data. Financial professionals often interact with documents…

Computation and Language · Computer Science 2025-10-28 Varshini Reddy , Rik Koncel-Kedziorski , Viet Dac Lai , Michael Krumdick , Charles Lovering , Chris Tanner

While Large Language Models (LLMs) achieve expert-level performance on standard medical benchmarks through single-hop factual recall, they severely struggle with the complex, multi-hop diagnostic reasoning required in real-world clinical…

Computation and Language · Computer Science 2026-03-16 Xing Zi , Xinying Zhou , Jinghao Xiao , Catarina Moreira , Mukesh Prasad

Biomedical reasoning often requires traversing interconnected relationships across entities such as drugs, diseases, and proteins. Despite the increasing prominence of large language models (LLMs), existing benchmarks lack the ability to…

Computation and Language · Computer Science 2025-06-10 Yunsoo Kim , Yusuf Abdulle , Honghan Wu

Effective multi-hop question answering (QA) requires reasoning over multiple scattered paragraphs and providing explanations for answers. Most existing approaches cannot provide an interpretable reasoning process to illustrate how these…

Computation and Language · Computer Science 2022-08-29 Zhenyun Deng , Yonghua Zhu , Yang Chen , Michael Witbrock , Patricia Riddle

Question Answering (QA) on narrative text poses a unique challenge to current systems, requiring a deep understanding of long, complex documents. However, the reliability of NarrativeQA, the most widely used benchmark in this domain, is…

Computation and Language · Computer Science 2025-10-16 Tommaso Bonomo , Luca Gioffré , Roberto Navigli

Scientific documents contain complex multimodal structures, which makes evidence localization and scientific reasoning in Document Visual Question Answering particularly challenging. However, most existing benchmarks evaluate models only at…

Databases · Computer Science 2026-03-31 Wenhan Yu , Zhaoxi Zhang , Wang Chen , Guanqiang Qi , Weikang Li , Lei Sha , Deguo Xia , Jizhou Huang

Large language models (LLMs) demonstrate remarkable performance across various tasks, prompting researchers to develop diverse evaluation benchmarks. However, most benchmarks typically measure the ability of LLMs to respond to individual…

Computation and Language · Computer Science 2026-01-30 Yutao Hou , Yajing Luo , Zhiwen Ruan , Hongru Wang , Weifeng Ge , Yun Chen , Guanhua Chen

Vision-Language Models (VLMs) have demonstrated remarkable capabilities in interpreting visual layouts and text. However, a significant challenge remains in their ability to interpret robustly and reason over multi-tabular data presented as…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Anshul Singh , Chris Biemann , Jan Strich

Multi-hop question answering (QA) requires a model to retrieve and integrate information from different parts of a long text to answer a question. Humans answer this kind of complex questions via a divide-and-conquer approach. In this…

Computation and Language · Computer Science 2021-01-28 Yixuan Tang , Hwee Tou Ng , Anthony K. H. Tung

Resolving knowledge conflicts is a crucial challenge in Question Answering (QA) tasks, as the internet contains numerous conflicting facts and opinions. While some research has made progress in tackling ambiguous settings where multiple…

Computation and Language · Computer Science 2024-10-30 Sagi Shaier , Ari Kobren , Philip Ogren

Knowledge in the real world is being updated constantly. However, it is costly to frequently update large language models (LLMs). Therefore, it is crucial for LLMs to understand the concept of temporal knowledge. However, prior works on…

Computation and Language · Computer Science 2024-07-15 Qingyu Tan , Hwee Tou Ng , Lidong Bing

Most Reading Comprehension methods limit themselves to queries which can be answered using a single sentence, paragraph, or document. Enabling models to combine disjoint pieces of textual evidence would extend the scope of machine…

Computation and Language · Computer Science 2018-06-12 Johannes Welbl , Pontus Stenetorp , Sebastian Riedel

Multi-hop reading comprehension (RC) questions are challenging because they require reading and reasoning over multiple paragraphs. We argue that it can be difficult to construct large multi-hop RC datasets. For example, even highly…

Computation and Language · Computer Science 2019-06-10 Sewon Min , Eric Wallace , Sameer Singh , Matt Gardner , Hannaneh Hajishirzi , Luke Zettlemoyer

The increasing availability of multimodal data across text, tables, and images presents new challenges for developing models capable of complex cross-modal reasoning. Existing methods for Multimodal Multi-hop Question Answering (MMQA) often…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Qi Zhi Lim , Chin Poo Lee , Kian Ming Lim , Kalaiarasi Sonai Muthu Anbananthen

The opioid crisis represents a significant moment in public health that reveals systemic shortcomings across regulatory systems, healthcare practices, corporate governance, and public policy. Analyzing how these interconnected systems…

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